Joseph bulova



(No Model.) I

' J. BULOV A.

JEWELRY. No. 363,725. Patented May 24, 1887.

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N. PETERS. Plwln-lilhographer, Washingloll. B4 c.

" UNITED STATES PATENT OFFICE.

JOSEPH BULOVA, OF NEW YORK, N. Y.

J EWELRY.

SPECIFICATION forming part of Letters Patent No. 363,725, dated May 24, 1887.

Application filed April 9, 1887. Serial No. 234,286. (No model.)

Q permit the attachment of the stone to the ring or other article of jewelry by means of but one elastic central tongue or rail, which enters a dovetail groove cut into the lower face of the stone.

The invention consists in the various features of improvement hereinafter more fully pointed out.

In the accompanying drawings, Figure 1 represents a side view of a finger-ring provided with my improvement. Fig. 2 is alon git-udinal central section of the same. Fig. 3

is a cross-section on the line a; m, Fig. 2.

Fig. 4 is a vertical face View of the tongue 0.

The letter or represents a finger-ring or other article of jewelry, having the flanges or sides 1), between which the stone 0 is set. This stone is provided at its lower face with a dovetail central groove, 0, such groove receiving a dovetailtongue or rail, 6, that extends also through holes or notches f in the flange b. To attach the stone to the ring, it is simply necessary to push the rail through the holes or notchesf and through the groove in the-stone c, and owing to the dovetail shape of the parts the stone will be securely held in place.

The tongue e is made with a central slot, 6', and is bulged outward slightly at the center of its long sides. Thus the tongue will have a springing or elastic action, and will tightly fit into its seat 0. Were it not for this construction, the tongue would be rigid, and it would be very difficult to so thoroughly fit the tongue as to prevent rattling of the stone.

\Vhat I claim is i The combination of an article of jewelry, a,

having the sides I), with the stone 0, having a p stantially as specified.

JOSEPH BULOVA.

Witnesses:

F. v. BRIESEN, HENRY E. ROEDER. 

